Meta, Microsoft, Amazon, and the mapping company TomTom have launched an initiative to take on Google Maps and Apple Maps. The four companies formed the Overture Maps Foundation last year with the goal of creating interoperable map products — and now, the group has released its first open map dataset.

With this data, third-party developers can create global mapping or navigation products of their own, allowing them to go head-to-head with Google Maps and Apple Maps. According to Overture, the release includes over 59 million places of interest, along with data on buildings, transportation networks, and administrative boundaries.

Overture says the data layers have been formatted so developers can “ingest and use map data in a standard, documented way and will be interoperable.” Developers can then use this information on which to build a mapping app or any service that relies on navigation. The dataset is available on Overture’s website.

“The Places dataset, in particular, represents a major, previously unavailable open dataset, with the potential to map everything from new businesses big and small to pop-up street markets located anywhere in the world,” Marc Prioleau, Overture’s executive director, says in a statement. “Overture plans to build a broad collaboration that can build and maintain an up-to-date, comprehensive database of POIs [places of interest].”

First formed last year, the Overture Maps Foundation could threaten Google’s and Apple’s thrones when it comes to mapping. Having the data readily available could make it easier — and far cheaper — for developers to make apps. Right now, developers must pay to access Google Maps’ API, while Apple also charges developers who are making non-native apps.